A once large and peaceful group of chimpanzees in the western forests of Uganda has now split into two, causing a rare “civil war” among the primates.

For decades, the 200 Ngogo chimpanzees in Kibale National Park, Uganda, lived what seemed a calm and normal existence. Males and females hunted together, groomed each other and went on patrols through ...

I’ve been “surrounded” by apes and monkeys for several weeks now as I read up on primate behavior as part of a UP course preparation for biological anthropology. This includes comparative studies of ...